Go to the beginning of the file

Question

I want to read a file forever how can I go to the beginning of the file
Here is my code

FILE* inp_file=fopen("Input_file.bin","rb"); 
uint8* buffer; 
buffer=(uint8*)malloc(nSize);
uint32 nSize =1000;
while(1)
{
   while(! feof (inp_file))
     {             
         memset (buffer,'0',nSize); 
         fread (buffer,nSize,1,inp_file);
         Sleep(5);
     }
  //Here I want to go to the beginning of the file
}

http://stackoverflow.com/questions/5431941/while-feof-file-is-always-wrong — William Pursell, Jul 02 '13 at 11:04
[Please don't cast the return value of `malloc()` in C](http://stackoverflow.com/questions/605845/do-i-cast-the-result-of-malloc). — unwind, Jul 02 '13 at 11:19

David Ranieri · Accepted Answer · 2013-07-02T11:14:42.917

2

Take a look to fseek and SEEK_SET

Also note that

uint8* buffer; 
buffer=(uint8*)malloc(nSize);
uint32 nSize =1000;

should be

uint8* buffer; 
uint32 nSize =1000;
buffer=(uint8*)malloc(nSize);

edited Jul 02 '13 at 11:14

answered Jul 02 '13 at 11:09

David Ranieri

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score 0 · Answer 2 · answered Jul 02 '13 at 11:18

Following seems to work for you. Best of luck :)

FILE* inp_file=fopen("Input_file.bin","rb"); 
uint8* buffer; 
buffer=(uint8*)malloc(nSize);
uint32 nSize =1000;
while(1)
{
   while(! feof (inp_file))
     {             
         memset (buffer,'0',nSize); 
         fread (buffer,nSize,1,inp_file);
         Sleep(5);
     }
  rewind(inp_file);
}

Go to the beginning of the file

2 Answers2